Pressure welding apparatus



July 12, 1960 Filed April 9, 1957 M o a n N F! I one one W. G. WHEELER ET AL PRESSURE WELDING APPARATUS 19 Sheets-Sheet 1 ease-er x7. 074050 IN V EN TORS' BY 60w FITOQNEVS' July 12, 1960 19 Sheets-Sheet 3 LO Q M 6 Ni (0/1759 6'. [Hf/E6258 (IA/6'05 I47 67741 M/LBZ/E G. [0000 1908597 F. 071050 I NV E NTORS July 12, 1960 w. G. WHEELER ETAL 2,944,449

PRESSURE WELDING APPARATUS l9 Sheets-Sheet 4 Filed April 9, 1957 easeer 19. @050 INVENTORS FTTOIQNEVS y 1950 w. (5. WHEELER ETAL 2,944,449

PRESSURE WELDING APPARATUS Filed April 9, 1957 19 Sheets-Sheet 5 July 12, 1960 w. G. WHEELER ETAL PRESSURE WELDING APPARATUS 19 Sheets-Sheet 6 Filed April 9, 1957 (119(7518 G. (ll/ E5652 fir G. 6.

I l/K/COZA/ V9 CHM/ INVENTORS July 12, 1960 Filed April 9, 1957 W. G. WHEELER ETAL PRESSURE WELDING APPARATUS 19 Sheets-Sheet '7 July 12, 1960 w. 0. WHEELER ETAL 2,944,449

PRESSURE WELDING APPARATUS Filed April 9, 1957 19 Sheets-Sheet 8 FIG. 10.

a. (0000 1905527 fl. [/76060 BY wrswraes |I4 July 12, 1960 w. 6. WHEELER ET AL 2,944,449

PRESSURE WELDING APPARATUS Filed April 9, 1957 19 Sheets-Sheet 9 7' lawn-tea: (If/E625? [/A/C'OZA/ V9 6011/ (0/0902 6'. 40009 1960 I w. 6. WHE LER ETAL 2,944,449

' PRESSUREWELDING APPARATUS Filed April 9, 1957 19 Sheets-Sheet 10 1960 w. G. WHEELER ET AL 2,944,449

PRESSURE WELDING APPARATUS Filed April 9, 1957 19 Sheets-Sheet 12 MUVEMEA/l' (0/175? 6'. Z/HEEZEQ (IA/6'01 VA? 677441 (0/1808 6. [0000 205587 1 7. 46050 INVENTORS 21 BY 4 Q Ma w. G. WHEELER ET AL 2,944,449

PRESSURE WELDING APPARATUS July l2, 1960 Filed April 9. 1957 19 Sheets-Sheet 15 IVA y 1960 w. G. WHEELER ET AL 2,944,449

PRESSURE WELDING APPARATUS Filed April 9, 1957 19 Sheets-Sheet l5 [0(758 G. WHEEA'SQ o7 LINCOLN I4 7 CflMP M/LBUIQ 0000 05527 /Z ZFMS'UN INVENTORS' July 12, 1960 w. G. WHEELER ET AL PRESSURE WELDING APPARATUS 19 Sheets-Sheet 16 Filed April 9, 1957 (fill/6'0 INVENTORS W w a e M M HTTO/QNEVS' July 12, 1960 w. 6. WHEELER ETAL 2,944,449

PRESSURE WELDING APPARATUS Filed April 9, 1957 19 Sheets-Sheet 18 w. G. WHEELER ETAL 2,944,449

PRESSURE WELDING APPARATUS July 12, 1960 is Sheets-Sheet 19 Filed April 9, 1957 Y if,

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. 4,944,449 7 1 PRESSURE WELDING APPARATUS Walterv G. Wheeler, Los Angeles, ,Calif., Lincoln Van Camp, Fort Worth, Tex., and Wilbur G. Wood, Glendale, and Robert A. Lawson, La Crescenta, Califi,

assignors to Menasco Manufacturing'Company, Burbank, Califl, a corporation of California r Filed Apr. 9, 19 57,-Ser. No. "653,508

I 7 Claims. 1 ((11. 78-82) This invention relates to pressure welding'apparatus', l5

and is particularly directed to improvements in apparatus. for producing welded joints between end faces of tubular members of relatively large size.

'Special purpose machines of the general type to which this invention pertainshave been constructed for particular uses such as pipe line welding, railroad rail welding, and machines for welding tool joints to drill pipe of the type used in the drilling of wells by the rotary process. Special purpose machines of these various types each lack adaptability for general purpose work, and furthermore are unsuited to accommodate weld component parts of varying-shapes and sizes, such as, for example, as are encountered in large-size landing gear mechanism for present-day aircraft. One of the objects of this inven tion is to provide pressure welding apparatus employing 3 a horizontal threecolumn frame whichpermits easy rvertical access for the parts to be welded and, at the sametime, permits ready access from the side over one waist- .high tie rod forthe operator. 1 Three. tieirods'permit an even distributionof welding pressure on the work pieces while eliminating the usual easy plane of bending typical of thetwo-column design. I g v Another object is to provide a welding device of this.

type characterized byeasy -set up of the part's of'the' apparatus for'any particular weld geometry, and char,

acterized by fiexibility and adaptability to parts of differ entsizesandshapes. r

Anotherv object is to providea large-capacity pressure welding machine of the type described, which produces welded parts having very close alignment and; dimensional tolerances. This feature of the invention is achieved by several related improvements inconstruction and design. The essential parts of the apparatus which tend to change location, during the welding cycle because of temperature change are all designed for internal water cooling. Also, distortion isminimized in the main frame of the apparatus by balancing forces about the weld center line, to provide for least'movement in location whenthe Work pieces are in place and whether the pressure welding-- forces are either applied or inactive. Furthermore, ,the weight of the components of the welding 'apparatusis 1 at least partially absorbed bycan intermediate jacking; device which provides'minimum distortion'and misalign ment oftheimachine parts by'dead weight. A-further important advantage in maintaining increased-accuracy 50 resides in the positioning of the work-holding devicesv a manner such that growth of the welded parts during the welding operation is. permitted without ichangingthe 1 center'line registration thereof. Y I j Another object of the invention isto providepressure, welding apparatus in which endwise pressure on the weld; face is maintained at a high value during the first part; of the welding cycle and whereinthis pressure is automatically reduced to acsubstantiall'ylower value during a subsequent portion of the welding cycle. 1

Other, relatedpand more detailed-objects and advan tages will appear hereinafter,

v bodiment of our invention.

in Figure .15. c v I V I Figure 18 is aiplarrfviewpartly in section, taken sub-j stantially on thelines 18- 18 as shown in Figure 17.

I In the drawings? Figure l is a side elevation Figure 2 is a side elevation of a ileft-hand portion of the apparatus shown on an enlarged scale.

Figure 3 is aside elevation of a rightwhand portion of the ap atus.

Figure 4 is an end elevation.

FigureS is a transverse sectional elevation taken substantially on the lines'S-S as shown in Figure 1.

Figure 6 is a side elevation in diagrammatic form.

Figure 7 is a view partly in section showing a completed Weld between a pair of tubular members.

Figure 7a is a sectional view showing the final form of the welded joint after interior and exterior upsets have been removed.

Figure 8 is a transverse sectional elevation taken sub stantially on the lines 88 as shown in Figure 1.

Figure 9 is a transverse sectional view taken substantially on the lines 9-9 as shown in Figure 1.

' Figure 10 is a sectional elevation taken'substantially on the lines 10-10 as shown in Figure 1.

Figure 11 is a sectional detail taken substantially on the lines 11-11 as shown in Figure 10.

Figure 12 is a sectional elevation partly broken away taken substantially on the lines 12-12 as shown in Figure'4.

Figure 13 is a sectional detail taken substantially on the lines 13-13 as shown in' Figure 14.

' Figure 14 is.a sectional elevationtaken substantially on the lines 14-14 as shown in Figure 1 3.

Figure 15 is an end elevation partly in section taken;

substanti'ally on the lines :15.15 as shown in Figure 1,

and showing the torch carriage assembly.

Figure'lois a cross section of'thetorch'head taken substantially'on the lines 1616 as shown in Figure 15. Figure-17 is a front. elevation 'of the apparatus shown Figure 19 is a sectional elevation taken'substantially on the lines 19 -19 as shown in Figure 18.

Figure 20 is' a sectional elevation similar to Figure 15,

showing the parts in a dilferent position.

Figure 21 is' a sectional elevation taken substantially- -'-on the lines 2121 as shown in Figure'1 7. I Figure 22 is a sectional plan view taken substantially on the lines 22-42 as shown in Figure 21.

Figure "2311s a front elevation of a clutch mechanism that operates a set ofmicroswitches to move or stop the' 'torch mechanism. 1 V V Figure 24 is a sectional viewtaken substantially on the lines 24-24 as shown in Figure 23.

Figure 25 is a sectional view showing a portion of Figure 24 on an enlarged scale and showing the clutch engaged.

Figure 26 is" a sectional plan view taken substantially on the lines 2626'as'shown in Figure 24. Figure 27 i's a sectional detail taken substantially on the lines 27-27 as shown in Figure 15.

Figure 28 is a fragmentary 'sectionalfview takensubstantially on thelines 28-28 as shown in Figure 27. I

Figure29is a sectionalvie w, partly broken away,taken substantially on'the lines 29+-29 as shown in Figure 27. .Figure 30 is an enlarged view of the metering mecha- "nis'm as shown bythearrow 30- in Figure 1.

Figure 31 is aside elevation, partly broken away, taken substantially in the directionshown by lines sl-sliin' 0 Figure30. a a

Figure 32 is an end elevation showinga portion of Figure 30. i e

p Patented July 12,1950

showing a preferred em-' 

